Means for turning crank-pins while in place in driving-wheels and boring the driving-wheel for the pin.



, H. H. VAUGHAN.

' MEANS EOE TUENINGMGRANK PINS WHILE IN PLACE IN DRIVING WHEELS ANDBORING TEEDEIVING WHEEL EOE THE PIN.

APPLICATION FILED AUG. 19,-1911.

Patented Apr. 14, 1914.

2 SHEETS-SHEET 1.

H. H. VAUG'HAN.

MEANS FOR TURNING CRANK PINS WHILE IN PLAGE IN DRIVING WHEELS AND BORINGTHE DRIVING WHEEL FOR THE EIN. APPLICATION FILED AUGLIB, 1911.

.1 ,093,219, Patented Apr. 14, 19M

2 SHEETS-SHEET 2.

6 lo O7 los l2-XB ,40 Ils Fly-8. ne. los 03 3o as Y vNrrian STATESHENRY- n, vnUeHAN, or MONTREAL, QUEBEC, CANADA, AssIeNon To ErrosBoRNEANn WILLIAM ANDREW PETERsEN, BoTi-I oF MONTREAL, CANADA, nNn

SAID VAUGHAN.

MEANS Eon TENING cRANK-PINS WHILE: IN PLACE m Iv BORING THEDRIVING-WHEEL For. PIN.

incaeio.

Specication of Letters Patent.

Painted dpr. Mc, 191e.

To all lwhom it may concern c Be it known that I, HENRY H. VAUGHAN, of'the city of Montreal, Province of Quebec, Dominion of Canada, have.invented certain new anduseful improvements in means for turningcrank-pins while in place in driving-.wheels and boring thedriving-wheel for the pin; and I do hereby declare that the following isa full, clear, and exact descrip- `tion thereof. I I

My invention 'relatesv particularly ,to ma'- chines for supporting theaxle and driving wheels of locomotives and operating on the same; and ithas for its object to provide a machine' of this type adapted to rectifythe defects in the crank-pins of locomotive driving wheels due to wearor faulty construction, and to prepare the wheels, after having beenmounted on the axle, to receive crank pms.

The invention may be said to consist of a machine for this purposecomprising means for supporting the axle and wheels and rigidly securingthe same against displacement, a hollow spindle vadapted to envelop thecrank-pin and carry a tool for acting upon the pin or a tool for boringa hole to receive a pin, and means for rotating` the said spindleandfeeding the same in the directionof the supportin means. For fullcomprehension however o my invention reference must be had to theaccompanying drawings forming a part of this specilication, in whichsimilar reference characters indicate the same parts, and wherein:

Figure 1 is a .side elevationl partly in sec-- tional view of-myimproved machine with an axle and portions of a pair of driving wheelsin dotted lines; Fig. 2 is a plan View thereof; Fig. 3 is a transversesectional view taken on line A A Fi 1 and illustrating. in detail aportion of t e means for adjust-v ing the supports for the axle andwheels;

Fig. 4 is a sectional view taken at right angles to, and illustratingthe same parts as, Fig. 3. Fig. 5 is a 'partelevation and part sectionalview on line B\ B Fig. 2 of the tool carrying end of 'the machine; Fig.6 is an elevation of the Aopposite end of the machine; Fig. 7 is atransverse vertical sectional view of the machine,l taken on line `C CFig. 2 and illustrating particularly' lneanswherebyfu'the tool carrieris fed manually or mechanically. Fig. 8 illustrates f lof D D Fig. 2;Iligs.v 9 and 10 are enlarged plan and vertical sectional views,respectively, of the tool-carrying end of the hol low spindle, thesectional view .being taken o n hne E Fig.` 9; Fig. 11 is an axialsectional v1ew of the tool carrying member of the `machine fitted with aboring tool, and F1g. 12 1s a detail elevation of the tool-carr1er. Y 1l The support for --the axle 2 and wheels 3 c onslsts of a pair of jacks4 and 5 respectively having ll-blocks or heads 6 and guided 1n standards7 bolted rigidly to a base 8 upon -whlch the working tool is alsocarried. The standards are vertically channeled to accommodate the jackswhich are retained by cover plates 9 and have their lower endsprotruding through the base and vengaged and hfted through a pair ofcombination hftmg nuts and bevel gears 10 held against verticaldisplacement by a part 12 of each standard; These gears are rotatedindefpendently or in unison by bevel gears 14 and 15 mounted,respectively, rigidly on a pair of alined shafts 16 and 17 the abutting'ends of which carry rigidly thereon a pair of ratchetwheels 19 and 20engaged by a. pair of pawls'21, 22, respectively, mounted .0n a lever-23. By throwing either pawl into` engagement with its ratchet wheeleither shaft and the jackin operative relation therewith may be raisedor lowered at gagement both jacks may be raised or`lowered in unison.

The tool holder 'consistsY of a hollow spindle 50 of sufficient bore toreceive locomotive crank-pins of the -largcst diameter. This spindle isrevolubly mounted in a saddle 51 between which and the spindle .is'lowill, or by throwing both pawls into encated a bushing 52 to take upwear, while unnecessary axialA play of the spindle/,1S taken up byangular distance and Jam-nuts 53 and 54 vrespectively screwed upon thedriven end of the. spindle, threaded for the purpose, a age 55 upon'theopposite end bearing, with sliding lit, upon the Hangedend 56 of the l).This drivenend protrudes beyond these nuts and is of reduced diameterand carries a gear 57 keyed thereto and operated by a pinion 58 mountedupon and in sliding rotation with a splined driving shaft 59 driven from-any available source of power. The cutting end of the spindle has castin one therewith a standard 75 having a dove-tailed projection 70 with aradial opening 77 to accom* modate an adjusting screw 78, the upper cndof which is rotatably seated in the upper end of the standard. Atool-carrier in the form of a slide 8O having a dovctail recess 81slidably receiving the projection 76, is engaged and supported by a pin82 formed on a nut 83 traveling on the screw 78. The tool, whether acutter 85 or a bar carrying a burnishing roller 86, is clamped in asocket 87 in the slide 80 by screws 88 in which it is set in properposition to act upon the pin. The saddle over- Vhangs the sides of thebase 8 flanged as at 90 beneath which a pair of 91 carried by theoverhanging portion of the saddle slidably engage, thus preventingvertical displacement of the latter; an adjusting gib 92 and series ofset-screws 93 taking up any unnecessary lateral play between the saddleandthe base. The saddle is automatically fed by means of a worm 100 onthe driving shaft 59 and engaging a worm wheel' 101 fixed on a traverseshaft 102 mounted in the base and extending through the side lof thelatter and having a handle 103 screwed thereon and free to be shifted onits thread to and fro for a limited distance along the shaft. This shaftis diminished to receive a sleeve 105 carrying a pair of spur gears 106,107 and a hand-Wheel 108 all rigidly mounted thereon, the gears beinginside the base and' the hand-wheel outside. Between the handle andhand-wheel, a clutch sleeve 110slidably keyed to the shaft, is adaptedto be shifted into engagement with a clutchface 112 on the hub of thehand-wheel, by turning the handle in one direction, and disengagedtherefrom by a spring 113 when the handle is turned in' the oppositeldirection. The gear wheels 106, 107-intermesh with a second pair ofgear-wheels 115 and 116 mounted rotatably on a shaft 120 cored out toreceive a spindle 121. The adjacent sides of these.v gear-wheelsv areformed with clutch faces 129 and 130, and a clutch block 131, slidablymounted on the shaft, is connected to the spindle 121 by which suchblock is shifted into engagement with either of the gear-wheels 115 and116 thereby effecting a rotative connection between the sleeve 105 andthe shaft 120. A bevel gear 140, fixed upon this 1astf,mentioned shaft,drives a second bevel-gear 141 fixed upon a screw 142 mounted inbearings in -the base and engaging a nut 143 fixed upon the saddle. -Therotation ofthe screw in one direction or the other causes the saddle totravel accordingly. When theclutch 110 engages the hand-wheel clutch112, the saddle will be fed mechanically and when disengaged t-he saddlecan be fed manually. By pulling out the spindle 121 sufficiently tobring the outer gear wheel 116 into engagement, a relatively fast feedis obtained and a slower feed when gear-wheel 115 is engaged.

Instead of the revolving cutter 85 or burnishing roller 86 a rotatingboring tool or axially-operating cutter may be tted into the hollowspindle. A tool suitable for the purpose consists of a circular bar 200slotted at one end to have a cutter'201 secured therein by a wedge 202and its opposite end seated in the reduced end of the spindle, a collar203 formed rigidly thereon fitting within varrangement is illustrated inFig. 11.

Operation: To turn down or burnish worn crank pins, the cutter or roller86 is set in proper radial position, and the pins are operated on whilethe wheels are rigidly connected with their axle which is seated in theV-blocks 6. The jacks are thenv raised or lowered individually ortogether and the wheels rotated by hand until that near the cutter hasits pin in axial alinement with the spindle in which angular positionthe wheels are clamped to the standards 7 by bolts 300. The saddle isthen fed by hand until the cutting or burnishing tool is in position toact upon the pin, .and the mechanical feed is then thrown in the toolduring operation traveling in a spiral path around 'the pin and turningdown or burnishing the entire perimeter thereof, the pin being meanwhileaccommodated by the bore of the spindle. The mechanical feed is thenthrown out and the saddle returned to its first position by the manualfeed, the wheels unclamped and the axle lifted and reversed and thewheels again adjusted and clamped and the pin of the other wheel actedupon. VWhen itis desired to bore the wheels to receive pins they areadjusted and clamped as above described and the tool 85 or 86 is removedand the boring tool 200 is in length -by a turn-buckle 351, andpivotally connected by an eye 352 to the base 8. The object of thisdeviceis to augment the adjustment lof the wheels to, and retain themin, proper quarteredl position by throwing the hook over one of thespokes and turning the turn-buckle until the hook takes hold.

A minute adjustment of the pin into axial alinement with the spindle canthus be readily obtained.

. What I claim` is as follows 1. A machine for turning crank pins whilein place in driving wheels comprising in -combinatlon upright means forsupporting and rigidly retaining .an axle with wheels in' place thereonwith a crank pin in the wheel and extending at right angles to the saidsupporting means; a hollowr tool holder adapted to receive thecrank-pin; means for rotating the holder; and means for feeding thesaidl holder toward the support.

2. A machine of the type described-comprising, in combination, a. bed; apair of lifting jacks carried by the bed; means for clamping uponthe'jacks an axle with driving-wheels rigidly thereon; means foroperating the jacks indecndently and together; a saddle supported y thebed and slidable in the direction of the jacks; a hollow toolcarryingspindle rotatably supported in the saddle; means for feeding the saddle;and

means for rotating the spindle.

VAUGHAN.

a Witnesses:

GORDON Gr. COOKE, A. W. HORSEY.

